The Gas Condensate from the high pressure separator flows through a throttling control valve to a low pressure separator. The reduction in pressure accross the control valve causes the condensate to undero a partial vaporization referred to as Flash Vaporization.The raw natural gas from the low pressure separator is sent to a "booster" compressor which raises the gas ressure and send it through a cooler.

The South Pars/North Dome field is a natural-gas condensate field located in the Persian Gulf. It is by far the world's largest natural gas field.[1] and Qatarshare ownership of the field.[2][3] According to the International Energy Agency (IEA), the field holds an estimated 1,800 trillion cubic feet (51 trillion cubic metres) of in-situ natural gas and some 50 billion barrels (7.9 billion cubic metres) of natural gas condensates.[4] On the list of natural gas fields it has more recoverable reserves than all other fields combined. It has significant geostrategic influence.

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This gas field covers an area of 9,700 square kilometres (3,700 sq mi), of which 3,700 square kilometres (1,400 sq mi) (South Pars) is territorial waters and 6,000 square kilometres (2,300 sq mi) (North Dome) is in Qatari territorial waters.[6]

 In Place Gas Reserve (trillion cu ft)Recoverable Gas Reserve (trillion cu ft)
South Pars500360
North Dome1300900
Total Field18001260